What type of mutation has occurred in the following?
Normal allele 5'–GGAAUGAAACAGGAACCC–3'
Mutant allele 5'–GGAAUGAAACAGGUACCC–3'
A. insertion of one base
B. insertion of two bases
C. deletion of one base
D. substitution
E. deletion of two bases
D. substitution
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During what stages of the cell cycle are sister chromatids bound together by cohesin?
A. G1, S, G2 B. S, G2 C. G1, S D. S, G2, prophase, metaphase E. S, G2, prophase, metaphase, anaphase, telophase
Which of the following are functions of decomposer fungi? Check all that apply.
_____ breakdown of leaf litter _____ breakdown of wood _____ breakdown of dead animals _____ recycling of essential nutrients _____ breakdown of pathogenic bacteria
A ?COOH group is a(n) ____ group
a. carboxyl b. hydroxyl c. amine d. methyl e. carbonyl
The physical removal of microbes is called (antisepsis/degerming/disinfection)
What will be an ideal response?